package gorm

import (
	"reflect"

	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
)

// Migrator returns migrator
func (db *DB) Migrator() Migrator {
	tx := db.getInstance()

	// apply scopes to migrator
	for len(tx.Statement.scopes) > 0 {
		tx = tx.executeScopes()
	}

	return tx.Dialector.Migrator(tx.Session(&Session{}))
}

// AutoMigrate run auto migration for given models

package clause

	FieldsWithDefaultDBValue  []*Field // fields with default value assigned by database
	Relationships             Relationships
	CreateClauses             []clause.Interface
	QueryClauses              []clause.Interface
	UpdateClauses             []clause.Interface
	DeleteClauses             []clause.Interface
	BeforeCreate, AfterCreate bool
	BeforeUpdate, AfterUpdate bool
	BeforeDelete, AfterDelete bool
	BeforeSave, AfterSave     bool

package tests_test

import (
	"testing"
	"time"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

type Person struct {
	ID        int
	Name      string
	Addresses []Address `gorm:"many2many:person_addresses;"`
	DeletedAt gorm.DeletedAt
}

type Address struct {
	ID   uint
	Name string
}

type PersonAddress struct {
	PersonID  int
	AddressID int
	CreatedAt time.Time
	DeletedAt gorm.DeletedAt
}

package clause

// AssociationOpType represents association operation types
type AssociationOpType int

const (
	OpUnlink AssociationOpType = iota // Unlink association
	OpDelete                          // Delete association records
	OpUpdate                          // Update association records
	OpCreate                          // Create association records with assignments
)

// Association represents an association operation

			"row":    {db: db},
			"raw":    {db: db},
		},
	}
}

// callbacks gorm callbacks manager
type callbacks struct {
	processors map[string]*processor
}

type processor struct {
	db        *DB
	Clauses   []string
	fns       []func(*DB)
	callbacks []*callback
}

type callback struct {
	name      string
	before    string
	after     string
	remove    bool
	replace   bool
	match     func(*DB) bool

 *
 * This exception is used to wrap checked ServletExceptions and convert them
 * into unchecked RuntimeExceptions, allowing them to be thrown from methods
 * that don't declare ServletException in their throws clause.
 */
public class ServletRuntimeException extends RuntimeException {

    /** Serial version UID for serialization compatibility. */
    private static final long serialVersionUID = 1L;

    /**

 * limitations under the License.
 */

package gradlebuild.modules.model


enum class License(val displayName: String) {
    Apache2("Apache 2.0"),
    BSD3("3-Clause BSD"),
    BSDStyle("BSD-style"),
    CDDL("CDDL"),
    EDL("Eclipse Distribution License 1.0"),
    EPL("Eclipse Public License 1.0"),
    LGPL21("LGPL 2.1"),
    MIT("MIT")

	ErrInvalidTransaction = errors.New("invalid transaction")
	// ErrNotImplemented not implemented
	ErrNotImplemented = errors.New("not implemented")
	// ErrMissingWhereClause missing where clause
	ErrMissingWhereClause = errors.New("WHERE conditions required")
	// ErrUnsupportedRelation unsupported relations
	ErrUnsupportedRelation = errors.New("unsupported relations")
	// ErrPrimaryKeyRequired primary keys required

	}
}

func TestReturningWithNullToZeroValues(t *testing.T) {
	dialect := DB.Dialector.Name()
	switch dialect {
	case "mysql", "sqlserver":
		// these dialects do not support the "returning" clause
		return
	default:
		// This user struct will leverage the existing users table, but override
		// the Name field to default to null.
		type user struct {
			gorm.Model
			Name string `gorm:"default:null"`
		}